Improved sase-suppostek



N. PETERS, PHOTO-DTHOGRAPH WASHINGTONy D i)4 @gleiten 'tat gateat @ffice JAMES H. DU {IIAM AND SANFORD RlSlNG, 0F LAFAYETTE, INDIANA.

Letters-'Patent No. 65,890, dated Jane 18, 186T; tznteciczted December 18 1866.

IMPROVED SASH-SUPPORTER.

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TO ALL WHOM IT MAY CONCERN:

le it known that we, JAMES I-I. DURHAM and SANFORD RISING, of the cit-y of Lafayette, in the county of rTippecanoe, and State of Indiana, have invented a new and useful lock, which may be applied to window-sashes oi" shutters, or other 'sliding apparatus, to be known as the Reversible Eccentric Lock; and we de hereby declare that the following is a full, clear, and exact description of the construction and operation of the saine, reference being had to the annexed drawings, making a part of this specification, in which- Figure I is a perspective view as applied to a vertical sliding apparatus.

Iiigure 2 shows the internal arrangements of the lock with its different positions while in operation.

Figure 3 shows a longitudinal elevation. I i

Figure`4 gives two views of the key on which the lock revolves when operated.

Figure 5 shows the shape aid construction of the spring which, in combination with the key, causes the leek to operate in the manner hereafter described.

` A, iig. I, is a circular lock constructed of two metallic disks, between which is firmly secured a circular piece of India rubber or other suitable elastic materiahfrom which has becnlcut aportion, forming the peculiarshaped recess, as shown at D, fig. 2, and into which is inserted the spring E, figs. 2 and 5. B, figs. I and '3, is a screw securing or holdingfthe parts together, and also serving as a knob or handle. C, figs. l, Q, 3, and 4, is a stationary or fixed key placed ,near the periphery or circumference oi' the metallic disks, in order that the lock should be eccentric or cam-like in its operation` as'it revolves around said key, which is also the hinge or point on which the lock turns. The ward of the key is shown at C', fig. 4, and extends between the arms .of the spring E, as shown in fig. 2. F, figs. 2 and 5, is a steel or brass spring constructed in the form or shape shown at tig. 5, and inserted in the recess in the rubber, as shown at iig. 2, letter D'. The spring is made to iit closely to the recess at the points (Z d, iig. Zin order that the rubber may act as a support to the spring, and also impart its own elasticity to aid the spring -in its aetion. The whole machine is secured to the window or other apparatus by the screw G, figs. land 3, which passes through the key C, igs. 1 and 3, and holds it firmly in position, and thus secures the whole machine te its proper place. 'Ihe dot-ted lines II II", iig. 2, show' the diiferent positions in which the lock is placed when inl use, for instance, en a window. H shows the window fastened down, while the lock reversed as at H holds it up, and iig. 2 proper shows the position in which the lock is held while being secured to the sash. 4The machine may be fastened lto cit-her side of the sash or windowframe, and operate as described, or on other sliding apparatus in like manner. Thereforei What we claini as our invention, and desire to secure by Letters Patent, is

The rubber cam, having a V-shaped recess wherein is placed-the spring E, as constructed, with screw-pivot G passing through the collar C, with a wing, c, for spreading the spring when arranged between the plates A, in the manner and for the purposes set forth.

JAMES I-I. DURHAM, SANFORD RISING.

Witnesses:

L. It. D1: Geer-r, D. G. Henn. 

